Vuelos de Delta de Atlanta (ATL) a Seattle (SEA) desde $139

It’s wise to learn about any travel advice reports and quarantine requirements in effect in your destination. Be sure to visit the Covid-19 Travel Advisor for up-to-date info on booking a flight to Sea-Tac Airport.

Generally, flights depart from terminal S at Hartsfield-Jackson Atlanta Intl. Airport (ATL) if you’ve booked a seat with Delta Air Lines. Landing at SEA? Touch base with your airline (or do some online research) to find out exactly which terminal you’ll be pulling into.

Direct flights can be booked with Delta Air Lines, which means you’ll be able to get from Hartsfield–Jackson Atlanta International Airport to Seattle - Tacoma Intl. Airport (SEA) fast. Those unforgettable travel experiences you’re chasing are a trouble-free flight away.

Squeeze in some in-flight shut-eye and begin your getaway relaxed and refreshed. You’ll have enough time to do so when traveling with Delta Air Lines between Atlanta Airport and SEA, with the average flight lasting 6 hours and 37 minutes.

If you’re traveling from ATL to SEA with Delta Air Lines, you’ll probably be cruising the skies aboard the Boeing 737-900 or the Boeing 757.

If you want to book a journey from ATL to SEA, you can choose from about 6 Delta Air Lines flights each day.

For more info about changing your flight to SEA, please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.